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Yorodumi- PDB-9aya: Crystal structure of CRAF/MEK complex with NST-628 and active RAF... -
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- Basic information
Basic information
| Entry | Database: PDB / ID: 9aya | ||||||
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| Title | Crystal structure of CRAF/MEK complex with NST-628 and active RAF dimer | ||||||
|  Components | 
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|  Keywords | TRANSFERASE / Inhibitor / complex / SIGNALING PROTEIN | ||||||
| Function / homology |  Function and homology information death-inducing signaling complex assembly / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of homotypic cell-cell adhesion / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / intermediate filament cytoskeleton organization / mitogen-activated protein kinase kinase / Golgi inheritance / placenta blood vessel development ...death-inducing signaling complex assembly / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of homotypic cell-cell adhesion / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / intermediate filament cytoskeleton organization / mitogen-activated protein kinase kinase / Golgi inheritance / placenta blood vessel development / MAP-kinase scaffold activity / positive regulation of muscle contraction / regulation of axon regeneration / cerebellar cortex formation / labyrinthine layer development / regulation of Rho protein signal transduction / melanosome transport / type B pancreatic cell proliferation / Signaling by MAP2K mutants / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling / vesicle transport along microtubule / positive regulation of axonogenesis / positive regulation of Ras protein signal transduction / insulin secretion involved in cellular response to glucose stimulus / regulation of Golgi inheritance / mitogen-activated protein kinase kinase kinase binding / central nervous system neuron differentiation / triglyceride homeostasis / trachea formation / Negative feedback regulation of MAPK pathway / regulation of early endosome to late endosome transport / IFNG signaling activates MAPKs / regulation of stress-activated MAPK cascade / Frs2-mediated activation / GP1b-IX-V activation signalling / MAPK3 (ERK1) activation / ERBB2-ERBB3 signaling pathway / neurotrophin TRK receptor signaling pathway / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / pseudopodium / face development / endodermal cell differentiation / MAP kinase kinase activity / Bergmann glial cell differentiation / positive regulation of ATP biosynthetic process / regulation of cell differentiation / thyroid gland development / Uptake and function of anthrax toxins / positive regulation of protein serine/threonine kinase activity / extrinsic apoptotic signaling pathway via death domain receptors / somatic stem cell population maintenance / protein kinase activator activity / positive regulation of peptidyl-serine phosphorylation / MAP kinase kinase kinase activity / type II interferon-mediated signaling pathway / negative regulation of protein-containing complex assembly / Schwann cell development / response to axon injury / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / keratinocyte differentiation / neuron projection morphogenesis / response to muscle stretch / ERK1 and ERK2 cascade / myelination / positive regulation of autophagy / protein serine/threonine/tyrosine kinase activity / CD209 (DC-SIGN) signaling / dendrite cytoplasm / insulin-like growth factor receptor signaling pathway / response to glucocorticoid / MAP3K8 (TPL2)-dependent MAPK1/3 activation / thymus development / adenylate cyclase activator activity / protein serine/threonine kinase activator activity / Signal transduction by L1 / cell motility / positive regulation of transcription elongation by RNA polymerase II / wound healing / RAF activation / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / small GTPase binding / Stimuli-sensing channels / neuron differentiation / chemotaxis / Negative regulation of MAPK pathway / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / Signaling by BRAF and RAF1 fusions / cellular senescence / insulin receptor signaling pathway / late endosome / MAPK cascade / heart development / response to oxidative stress / protein tyrosine kinase activity Similarity search - Function | ||||||
| Biological species |  Homo sapiens (human) | ||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 2.59 Å | ||||||
|  Authors | Quade, B. / Huang, X. | ||||||
| Funding support | 1items 
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|  Citation |  Journal: Cancer Discov / Year: 2024 Title: The Pan-RAF-MEK Nondegrading Molecular Glue NST-628 Is a Potent and Brain-Penetrant Inhibitor of the RAS-MAPK Pathway with Activity across Diverse RAS- and RAF-Driven Cancers. Authors: Meagan B Ryan / Bradley Quade / Natasha Schenk / Zhong Fang / Marshall Zingg / Steven E Cohen / Brooke M Swalm / Chun Li / Ayşegül Özen / Chaoyang Ye / Maria Stella Ritorto / Xin Huang / ...Authors: Meagan B Ryan / Bradley Quade / Natasha Schenk / Zhong Fang / Marshall Zingg / Steven E Cohen / Brooke M Swalm / Chun Li / Ayşegül Özen / Chaoyang Ye / Maria Stella Ritorto / Xin Huang / Arvin C Dar / Yongxin Han / Klaus P Hoeflich / Michael Hale / Margit Hagel /  Abstract: Alterations in the RAS-MAPK signaling cascade are common across multiple solid tumor types and are a driver for many cancers. NST-628 is a potent pan-RAF-MEK molecular glue that prevents the ...Alterations in the RAS-MAPK signaling cascade are common across multiple solid tumor types and are a driver for many cancers. NST-628 is a potent pan-RAF-MEK molecular glue that prevents the phosphorylation and activation of MEK by RAF, overcoming the limitations of traditional RAS-MAPK inhibitors and leading to deep durable inhibition of the pathway. Cellular, biochemical, and structural analyses of RAF-MEK complexes show that NST-628 engages all isoforms of RAF and prevents the formation of BRAF-CRAF heterodimers, a differentiated mechanism from all current RAF inhibitors. With a potent and durable inhibition of the RAF-MEK signaling complex as well as high intrinsic permeability into the brain, NST-628 demonstrates broad efficacy in cellular and patient-derived tumor models harboring diverse MAPK pathway alterations, including orthotopic intracranial models. Given its functional and pharmacokinetic mechanisms that are differentiated from previous therapies, NST-628 is positioned to make an impact clinically in areas of unmet patient need. Significance: This study introduces NST-628, a molecular glue having differentiated mechanism and drug-like properties. NST-628 treatment leads to broad efficacy with high tolerability and central nervous system activity across multiple RAS- and RAF-driven tumor models. NST-628 has the potential to provide transformative clinical benefits as both monotherapy and vertical combination anchor. | ||||||
| History | 
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- Structure visualization
Structure visualization
| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
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- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  9aya.cif.gz | 547.7 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb9aya.ent.gz | Display |  PDB format | |
| PDBx/mmJSON format |  9aya.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  9aya_validation.pdf.gz | 1.4 MB | Display |  wwPDB validaton report | 
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| Full document |  9aya_full_validation.pdf.gz | 1.4 MB | Display | |
| Data in XML |  9aya_validation.xml.gz | 39.6 KB | Display | |
| Data in CIF |  9aya_validation.cif.gz | 53.9 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/ay/9aya  ftp://data.pdbj.org/pub/pdb/validation_reports/ay/9aya | HTTPS FTP | 
-Related structure data
| Related structure data |  9axaC  9axcC  9axhC  9axmC  9axxC  9axyC  9ay7C C: citing same article ( | 
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| Similar structure data | Similarity search - Function & homology  F&H Search | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| Unit cell | 
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- Components
Components
-Protein , 2 types, 4 molecules ACBD   
| #1: Protein | Mass: 31975.775 Da / Num. of mol.: 2 / Mutation: Y340D Y341D Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: RAF1, RAF / Production host:  Homo sapiens (human) References: UniProt: P04049, non-specific serine/threonine protein kinase #2: Protein | Mass: 34543.836 Da / Num. of mol.: 2 / Mutation: S218A S222A Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: MAP2K1, MEK1, PRKMK1 / Production host:  Homo sapiens (human) References: UniProt: Q02750, mitogen-activated protein kinase kinase | 
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-Non-polymers , 4 types, 55 molecules 




| #3: Chemical | Mass: 488.464 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C22H18F2N4O5S / Feature type: SUBJECT OF INVESTIGATION #4: Chemical | #5: Chemical | #6: Water | ChemComp-HOH / |  | 
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-Details
| Has ligand of interest | Y | 
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-Experimental details
-Experiment
| Experiment | Method:  X-RAY DIFFRACTION / Number of used crystals: 1 | 
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- Sample preparation
Sample preparation
| Crystal | Density Matthews: 2.65 Å3/Da / Density % sol: 53.51 % | 
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| Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 7 Details: 0.2M magnesium chloride, 0.1M tris pH 7.0, 10% w/v PEG 8000 | 
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | 
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| Diffraction source | Source:  SYNCHROTRON / Site:  SSRF  / Beamline: BL02U1 / Wavelength: 0.97918 Å | 
| Detector | Type: DECTRIS EIGER2 S 9M / Detector: PIXEL / Date: May 5, 2023 | 
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Wavelength: 0.97918 Å / Relative weight: 1 | 
| Reflection | Resolution: 2.59→161.57 Å / Num. obs: 43777 / % possible obs: 99.9 % / Redundancy: 4.5 % / Biso Wilson estimate: 49.21 Å2 / Rmerge(I) obs: 0.075 / Net I/σ(I): 13 | 
| Reflection shell | Resolution: 2.59→2.69 Å / Rmerge(I) obs: 0.544 / Num. unique obs: 2754 | 
- Processing
Processing
| Software | 
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENT / Resolution: 2.59→57.64 Å / SU ML: 0.3592  / Cross valid method: FREE R-VALUE / σ(F): 1.35  / Phase error: 26.9142 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 56.57 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.59→57.64 Å 
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| Refine LS restraints | 
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| LS refinement shell | 
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| Refinement TLS params. | Method: refined / Origin x: -29.1296860495 Å / Origin y: -5.8080576698 Å / Origin z: 38.7259386249 Å 
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| Refinement TLS group | Selection details: all | 
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